Grain-car door.



C. A. CREAPO.

GRAIN CAR DOOR.

APPUCATION FILED FEB. 2. 1914.

1,159,651. Patented Nov. 9, 1915.

CM 25 H Creapo.

COLUMBIA PLANOGRAPH 420., WASHINGTON, D c.

CHARLES A. GREAPO, OF ST. PAUL, MINNESOTA.

GRAIN-CAR noon.

Specification of Letters Patent.

Patented Nov. 9, 1915.

Application filed February 2, 1914. Serial No. 815,950. 7

To all whom it may concern.

Be it known that I, CHARLES A. CRnAro, a citizen of the United States,residing at St. Paul, in the county of Ramsey and State of Minnesota,have invented a new and useful. Tmprovement inGrain-Car Doors, of whichthe following is a specification.

The object of this invention is the production of a fire proof door foruse upon grain cars which can be easily and quickly attached to ordetached from the door frame of an ordinary freight car. Doors for graincars heretofore provided have usually been too complicated and expensivewhen of sufficient strength to be commercially practicable. My inventionproduces a strong and extremelysimple structure composed of sections ofcorrugated metal and channel memberswhich may be. easily and quicklyadjusted to the sides of a doorway, making the invention feasible fortemporary use during the busy season of shipping grain and permitting itto be entirely removed from the car quickly when the carvis used fortransporting other freight.

In the accompanying drawing forming part of this specification, Figure lis a section of a fragment of a car having my novel door appliedthereto, said section being taken upon the line XX of Fig. 2; Fig. 2 isanother section of a fragment taken in a horizontal plane through thecar body such as on the line YY of Fig. 1; Fig. 8 is a perspective of adetail of one of the parts of the door; Figs. 4 and are side viewspartly broken away and in section of one of the channel members in whichthe door sections are adapted to be held, and Fig. 6.is a section of a.detail.

In the drawing A indicates a fragment of an ordinary freight car havingthe usual door way 13. The bottom of this doorway is formed by the floor2 of the car in the ordinary manner and the sides by the verticaluprights 3 and 4, (see Fig. 2). The ordinary door 5 is also indicated onthe outside of the car, this door being adapted to be closed and sealedin the usual manner after the car has been filled with grain and myimproved door C being employed inside.

My improved grain car door consists of a series of superimposedhorizontal sections 6 which are similar in construction. Each of thesesections consists of a piece of corruqated metal, the corrugations ofwhich ex tend longitudinally and horizontally when the sections areplaced in. the doorway. Each end of each section is incased inn strip ofchannel iron 7, (see Fig. 3), which is secured to the corrugated metalsuch as by rivets 8. Thischannel memberreinforces the strength of thecorrugated section, preventing it from bending or expanding across thecorrugations and also forms a pocket which prevents any grain leakingout of the door'around the ends of the sections. Secured to eachof theuprights 3 and l is a vertical I beam 9 which is placed with one of itsbars 10 resting flat against the inner surface of the upright. The lowerend of this I beam is formed with projecting teeth 11 which are adaptedto engage in the surface of the floor to hold the lower end of the beamin position laterally and longitudinally of the car. The upper end ofthe I beam has formed upon the bar 10, a pair of bosses 12 and 13 whichare adapted to straddle the upright to hold the upper end of the I beamlongitudinally of the car. For the purpose of holding the I beamlaterally and vertically of the car, inwardly projecting lugs formingteeth H, (see Fig. 4) are provided on the inner face of the boss 12 anda bolt 15 is slidably mounted in the boss 13. This bolt is formed withteeth 16 on its inner end which are adapted to coact with the teeth letto tightly engage the sides of the upright when the bolt is projectedinwardly. The bolt 15 is formed with a head 17 on its outer end by whichthe bolt can be withdrawn from or driven into tight engagement with theupright. A. spring 18 secured to the boss 13 such as by rivets 19 hasits free end pressing down upon a pin 20 on the bolt and serves toreleasably hold the bolt tightly engaged with the upright. Thehorizontal adjacent edges 21 of the sections 6 are made to overlap (seeFig. 4L) and the lower edge of the lowermost section is formed with aninwardly projecting lip 22, (see Fig. l), resting upon the floor of thecar, thus producing tight joints which prevent any grain leaking outthrough the door.

In use the I beams are first attached to the vertical beams and floor ofthe doorway by teeth 11 and 14: and bolt 15 and the sections 6 aresuperimposed in a vertical plane with their ends engaged in the adjacentchannels of the I beams.

in accordance with the patent statutes I have described the principlesof operation of my invention together with the apparatus which I nowconsider to represent the best embodiment thereof, but I desire to haveit understood that the construction shown is only illustrative, and thatthe invention can be carried out by other means and apnlied to usesother than those above set forth within the scope of the followingclaims.

Having described my invention, what I claim as new and desire to protectby Letters Patent is 1. The combination with a grain car provided with adoorway having uprights at its sides and a floor, of a pair of channelmembers engaging the inner faces of said uprights, the lower ends ofsaid members being secured to the floor, spaced bosses formed uponeither of said members adj acent its upper end and straddling theupright with which it is associated, one of said bosses being providedwith means upon its inner surface for securing it to a face of theupright, the other oi said bosses beingprovided with a bolt for securingit to a face of the imright, and closure means for said doorway workingwithin said channel members.

2. The combination with a grain car provided with a doorway havinguprights at its sides and a floor, of a pair of channel members engagingthe inner faces of said uprights, the lower ends of said members beingreleasably secured to the floor, soaced bosses formed upon either ofsaid members adjacent its upper end and straddling the upright withwhich it is associated, one of said bosses having teeth upon its innersurface for releasably securing it to a face of the upright, the otherof said bosses-having a bolt for detachably securing it to a face of theupright, a spring carried by said last mentioned boss tensionallvengaging said bolt for retaining it in holding position, and sectionalmetal closure means for said doorwav working in said channel members.

In testimony whereof, I have signed my name to this specification,in-the presence of two subscribing witnesses.

CHARLES A. CREAPO.

itnesses CLARENCE W. HALBERT, F. G. BRADBURY.

Copies of this patent may be obtained for five cents each, by addressingthe 7 Commissioner of Patents. Washington, D. G.

